projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /****************************************************************************/ |
| 2 | ||
| 3 | /* | |
| 7a77d918 GU |
4 | * fec.h -- Fast Ethernet Controller for Motorola ColdFire SoC |
| 5 | * processors. | |
| 1da177e4 | 6 | * |
| 7a77d918 | 7 | * (C) Copyright 2000-2005, Greg Ungerer (gerg@snapgear.com) |
| 1da177e4 LT |
8 | * (C) Copyright 2000-2001, Lineo (www.lineo.com) |
| 9 | */ | |
| 10 | ||
| 11 | /****************************************************************************/ | |
| 12 | #ifndef FEC_H | |
| 13 | #define FEC_H | |
| 14 | /****************************************************************************/ | |
| 15 | ||
| 6605b730 FL |
16 | #include <linux/clocksource.h> |
| 17 | #include <linux/net_tstamp.h> | |
| 18 | #include <linux/ptp_clock_kernel.h> | |
| 74d23cc7 | 19 | #include <linux/timecounter.h> |
| 6605b730 | 20 | |
| 7a77d918 | 21 | #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ |
| 05f3b50e | 22 | defined(CONFIG_M520x) || defined(CONFIG_M532x) || defined(CONFIG_ARM) |
| 1da177e4 LT |
23 | /* |
| 24 | * Just figures, Motorola would have to change the offsets for | |
| 25 | * registers in the same peripheral device on different models | |
| 26 | * of the ColdFire! | |
| 27 | */ | |
| f44d6305 SH |
28 | #define FEC_IEVENT 0x004 /* Interrupt event reg */ |
| 29 | #define FEC_IMASK 0x008 /* Interrupt mask reg */ | |
| 4d494cdc FD |
30 | #define FEC_R_DES_ACTIVE_0 0x010 /* Receive descriptor reg */ |
| 31 | #define FEC_X_DES_ACTIVE_0 0x014 /* Transmit descriptor reg */ | |
| f44d6305 SH |
32 | #define FEC_ECNTRL 0x024 /* Ethernet control reg */ |
| 33 | #define FEC_MII_DATA 0x040 /* MII manage frame reg */ | |
| 34 | #define FEC_MII_SPEED 0x044 /* MII speed control reg */ | |
| 35 | #define FEC_MIB_CTRLSTAT 0x064 /* MIB control/status reg */ | |
| 36 | #define FEC_R_CNTRL 0x084 /* Receive control reg */ | |
| 37 | #define FEC_X_CNTRL 0x0c4 /* Transmit Control reg */ | |
| 38 | #define FEC_ADDR_LOW 0x0e4 /* Low 32bits MAC address */ | |
| 39 | #define FEC_ADDR_HIGH 0x0e8 /* High 16bits MAC address */ | |
| 40 | #define FEC_OPD 0x0ec /* Opcode + Pause duration */ | |
| 745f42ba LW |
41 | #define FEC_TXIC0 0x0f0 /* Tx Interrupt Coalescing for ring 0 */ |
| 42 | #define FEC_TXIC1 0x0f4 /* Tx Interrupt Coalescing for ring 1 */ | |
| 43 | #define FEC_TXIC2 0x0f8 /* Tx Interrupt Coalescing for ring 2 */ | |
| ce99d0d3 FL |
44 | #define FEC_RXIC0 0x100 /* Rx Interrupt Coalescing for ring 0 */ |
| 45 | #define FEC_RXIC1 0x104 /* Rx Interrupt Coalescing for ring 1 */ | |
| 46 | #define FEC_RXIC2 0x108 /* Rx Interrupt Coalescing for ring 2 */ | |
| f44d6305 SH |
47 | #define FEC_HASH_TABLE_HIGH 0x118 /* High 32bits hash table */ |
| 48 | #define FEC_HASH_TABLE_LOW 0x11c /* Low 32bits hash table */ | |
| 49 | #define FEC_GRP_HASH_TABLE_HIGH 0x120 /* High 32bits hash table */ | |
| 50 | #define FEC_GRP_HASH_TABLE_LOW 0x124 /* Low 32bits hash table */ | |
| 51 | #define FEC_X_WMRK 0x144 /* FIFO transmit water mark */ | |
| 52 | #define FEC_R_BOUND 0x14c /* FIFO receive bound reg */ | |
| 53 | #define FEC_R_FSTART 0x150 /* FIFO receive start reg */ | |
| 4d494cdc FD |
54 | #define FEC_R_DES_START_1 0x160 /* Receive descriptor ring 1 */ |
| 55 | #define FEC_X_DES_START_1 0x164 /* Transmit descriptor ring 1 */ | |
| d543a762 | 56 | #define FEC_R_BUFF_SIZE_1 0x168 /* Maximum receive buff ring1 size */ |
| 4d494cdc FD |
57 | #define FEC_R_DES_START_2 0x16c /* Receive descriptor ring 2 */ |
| 58 | #define FEC_X_DES_START_2 0x170 /* Transmit descriptor ring 2 */ | |
| d543a762 | 59 | #define FEC_R_BUFF_SIZE_2 0x174 /* Maximum receive buff ring2 size */ |
| 4d494cdc FD |
60 | #define FEC_R_DES_START_0 0x180 /* Receive descriptor ring */ |
| 61 | #define FEC_X_DES_START_0 0x184 /* Transmit descriptor ring */ | |
| d543a762 | 62 | #define FEC_R_BUFF_SIZE_0 0x188 /* Maximum receive buff size */ |
| baa70a5c FL |
63 | #define FEC_R_FIFO_RSFL 0x190 /* Receive FIFO section full threshold */ |
| 64 | #define FEC_R_FIFO_RSEM 0x194 /* Receive FIFO section empty threshold */ | |
| 65 | #define FEC_R_FIFO_RAEM 0x198 /* Receive FIFO almost empty threshold */ | |
| 66 | #define FEC_R_FIFO_RAFL 0x19c /* Receive FIFO almost full threshold */ | |
| 55cd48c8 | 67 | #define FEC_FTRL 0x1b0 /* Frame truncation receive length*/ |
| 745f42ba | 68 | #define FEC_RACC 0x1c4 /* Receive Accelerator function */ |
| 4d494cdc FD |
69 | #define FEC_RCMR_1 0x1c8 /* Receive classification match ring 1 */ |
| 70 | #define FEC_RCMR_2 0x1cc /* Receive classification match ring 2 */ | |
| 71 | #define FEC_DMA_CFG_1 0x1d8 /* DMA class configuration for ring 1 */ | |
| 72 | #define FEC_DMA_CFG_2 0x1dc /* DMA class Configuration for ring 2 */ | |
| 73 | #define FEC_R_DES_ACTIVE_1 0x1e0 /* Rx descriptor active for ring 1 */ | |
| 74 | #define FEC_X_DES_ACTIVE_1 0x1e4 /* Tx descriptor active for ring 1 */ | |
| 75 | #define FEC_R_DES_ACTIVE_2 0x1e8 /* Rx descriptor active for ring 2 */ | |
| 76 | #define FEC_X_DES_ACTIVE_2 0x1ec /* Tx descriptor active for ring 2 */ | |
| ce99d0d3 | 77 | #define FEC_QOS_SCHEME 0x1f0 /* Set multi queues Qos scheme */ |
| 5eb32bd0 BS |
78 | #define FEC_MIIGSK_CFGR 0x300 /* MIIGSK Configuration reg */ |
| 79 | #define FEC_MIIGSK_ENR 0x308 /* MIIGSK Enable reg */ | |
| 1da177e4 | 80 | |
| 8d82f219 EB |
81 | #define BM_MIIGSK_CFGR_MII 0x00 |
| 82 | #define BM_MIIGSK_CFGR_RMII 0x01 | |
| 83 | #define BM_MIIGSK_CFGR_FRCONT_10M 0x40 | |
| 84 | ||
| 38ae92dc CH |
85 | #define RMON_T_DROP 0x200 /* Count of frames not cntd correctly */ |
| 86 | #define RMON_T_PACKETS 0x204 /* RMON TX packet count */ | |
| 87 | #define RMON_T_BC_PKT 0x208 /* RMON TX broadcast pkts */ | |
| 745f42ba | 88 | #define RMON_T_MC_PKT 0x20c /* RMON TX multicast pkts */ |
| 38ae92dc CH |
89 | #define RMON_T_CRC_ALIGN 0x210 /* RMON TX pkts with CRC align err */ |
| 90 | #define RMON_T_UNDERSIZE 0x214 /* RMON TX pkts < 64 bytes, good CRC */ | |
| 91 | #define RMON_T_OVERSIZE 0x218 /* RMON TX pkts > MAX_FL bytes good CRC */ | |
| 745f42ba | 92 | #define RMON_T_FRAG 0x21c /* RMON TX pkts < 64 bytes, bad CRC */ |
| 38ae92dc CH |
93 | #define RMON_T_JAB 0x220 /* RMON TX pkts > MAX_FL bytes, bad CRC */ |
| 94 | #define RMON_T_COL 0x224 /* RMON TX collision count */ | |
| 95 | #define RMON_T_P64 0x228 /* RMON TX 64 byte pkts */ | |
| 745f42ba | 96 | #define RMON_T_P65TO127 0x22c /* RMON TX 65 to 127 byte pkts */ |
| 38ae92dc CH |
97 | #define RMON_T_P128TO255 0x230 /* RMON TX 128 to 255 byte pkts */ |
| 98 | #define RMON_T_P256TO511 0x234 /* RMON TX 256 to 511 byte pkts */ | |
| 99 | #define RMON_T_P512TO1023 0x238 /* RMON TX 512 to 1023 byte pkts */ | |
| 745f42ba | 100 | #define RMON_T_P1024TO2047 0x23c /* RMON TX 1024 to 2047 byte pkts */ |
| 38ae92dc CH |
101 | #define RMON_T_P_GTE2048 0x240 /* RMON TX pkts > 2048 bytes */ |
| 102 | #define RMON_T_OCTETS 0x244 /* RMON TX octets */ | |
| 103 | #define IEEE_T_DROP 0x248 /* Count of frames not counted crtly */ | |
| 745f42ba | 104 | #define IEEE_T_FRAME_OK 0x24c /* Frames tx'd OK */ |
| 38ae92dc CH |
105 | #define IEEE_T_1COL 0x250 /* Frames tx'd with single collision */ |
| 106 | #define IEEE_T_MCOL 0x254 /* Frames tx'd with multiple collision */ | |
| 107 | #define IEEE_T_DEF 0x258 /* Frames tx'd after deferral delay */ | |
| 745f42ba | 108 | #define IEEE_T_LCOL 0x25c /* Frames tx'd with late collision */ |
| 38ae92dc CH |
109 | #define IEEE_T_EXCOL 0x260 /* Frames tx'd with excesv collisions */ |
| 110 | #define IEEE_T_MACERR 0x264 /* Frames tx'd with TX FIFO underrun */ | |
| 111 | #define IEEE_T_CSERR 0x268 /* Frames tx'd with carrier sense err */ | |
| 745f42ba | 112 | #define IEEE_T_SQE 0x26c /* Frames tx'd with SQE err */ |
| 38ae92dc CH |
113 | #define IEEE_T_FDXFC 0x270 /* Flow control pause frames tx'd */ |
| 114 | #define IEEE_T_OCTETS_OK 0x274 /* Octet count for frames tx'd w/o err */ | |
| 115 | #define RMON_R_PACKETS 0x284 /* RMON RX packet count */ | |
| 116 | #define RMON_R_BC_PKT 0x288 /* RMON RX broadcast pkts */ | |
| 745f42ba | 117 | #define RMON_R_MC_PKT 0x28c /* RMON RX multicast pkts */ |
| 38ae92dc CH |
118 | #define RMON_R_CRC_ALIGN 0x290 /* RMON RX pkts with CRC alignment err */ |
| 119 | #define RMON_R_UNDERSIZE 0x294 /* RMON RX pkts < 64 bytes, good CRC */ | |
| 120 | #define RMON_R_OVERSIZE 0x298 /* RMON RX pkts > MAX_FL bytes good CRC */ | |
| 745f42ba LW |
121 | #define RMON_R_FRAG 0x29c /* RMON RX pkts < 64 bytes, bad CRC */ |
| 122 | #define RMON_R_JAB 0x2a0 /* RMON RX pkts > MAX_FL bytes, bad CRC */ | |
| 123 | #define RMON_R_RESVD_O 0x2a4 /* Reserved */ | |
| 124 | #define RMON_R_P64 0x2a8 /* RMON RX 64 byte pkts */ | |
| 125 | #define RMON_R_P65TO127 0x2ac /* RMON RX 65 to 127 byte pkts */ | |
| 126 | #define RMON_R_P128TO255 0x2b0 /* RMON RX 128 to 255 byte pkts */ | |
| 127 | #define RMON_R_P256TO511 0x2b4 /* RMON RX 256 to 511 byte pkts */ | |
| 128 | #define RMON_R_P512TO1023 0x2b8 /* RMON RX 512 to 1023 byte pkts */ | |
| 129 | #define RMON_R_P1024TO2047 0x2bc /* RMON RX 1024 to 2047 byte pkts */ | |
| 130 | #define RMON_R_P_GTE2048 0x2c0 /* RMON RX pkts > 2048 bytes */ | |
| 131 | #define RMON_R_OCTETS 0x2c4 /* RMON RX octets */ | |
| 132 | #define IEEE_R_DROP 0x2c8 /* Count frames not counted correctly */ | |
| 133 | #define IEEE_R_FRAME_OK 0x2cc /* Frames rx'd OK */ | |
| 134 | #define IEEE_R_CRC 0x2d0 /* Frames rx'd with CRC err */ | |
| 135 | #define IEEE_R_ALIGN 0x2d4 /* Frames rx'd with alignment err */ | |
| 136 | #define IEEE_R_MACERR 0x2d8 /* Receive FIFO overflow count */ | |
| 137 | #define IEEE_R_FDXFC 0x2dc /* Flow control pause frames rx'd */ | |
| 138 | #define IEEE_R_OCTETS_OK 0x2e0 /* Octet cnt for frames rx'd w/o err */ | |
| 38ae92dc | 139 | |
| 1da177e4 LT |
140 | #else |
| 141 | ||
| 9ff1a91c GU |
142 | #define FEC_ECNTRL 0x000 /* Ethernet control reg */ |
| 143 | #define FEC_IEVENT 0x004 /* Interrupt even reg */ | |
| 144 | #define FEC_IMASK 0x008 /* Interrupt mask reg */ | |
| 145 | #define FEC_IVEC 0x00c /* Interrupt vec status reg */ | |
| bf3c228d FL |
146 | #define FEC_R_DES_ACTIVE_0 0x010 /* Receive descriptor reg */ |
| 147 | #define FEC_R_DES_ACTIVE_1 FEC_R_DES_ACTIVE_0 | |
| 148 | #define FEC_R_DES_ACTIVE_2 FEC_R_DES_ACTIVE_0 | |
| 149 | #define FEC_X_DES_ACTIVE_0 0x014 /* Transmit descriptor reg */ | |
| 150 | #define FEC_X_DES_ACTIVE_1 FEC_X_DES_ACTIVE_0 | |
| 151 | #define FEC_X_DES_ACTIVE_2 FEC_X_DES_ACTIVE_0 | |
| f44d6305 SH |
152 | #define FEC_MII_DATA 0x040 /* MII manage frame reg */ |
| 153 | #define FEC_MII_SPEED 0x044 /* MII speed control reg */ | |
| 154 | #define FEC_R_BOUND 0x08c /* FIFO receive bound reg */ | |
| 155 | #define FEC_R_FSTART 0x090 /* FIFO receive start reg */ | |
| 156 | #define FEC_X_WMRK 0x0a4 /* FIFO transmit water mark */ | |
| 157 | #define FEC_X_FSTART 0x0ac /* FIFO transmit start reg */ | |
| 158 | #define FEC_R_CNTRL 0x104 /* Receive control reg */ | |
| 159 | #define FEC_MAX_FRM_LEN 0x108 /* Maximum frame length reg */ | |
| 160 | #define FEC_X_CNTRL 0x144 /* Transmit Control reg */ | |
| 161 | #define FEC_ADDR_LOW 0x3c0 /* Low 32bits MAC address */ | |
| 162 | #define FEC_ADDR_HIGH 0x3c4 /* High 16bits MAC address */ | |
| 163 | #define FEC_GRP_HASH_TABLE_HIGH 0x3c8 /* High 32bits hash table */ | |
| 164 | #define FEC_GRP_HASH_TABLE_LOW 0x3cc /* Low 32bits hash table */ | |
| bf3c228d FL |
165 | #define FEC_R_DES_START_0 0x3d0 /* Receive descriptor ring */ |
| 166 | #define FEC_R_DES_START_1 FEC_R_DES_START_0 | |
| 167 | #define FEC_R_DES_START_2 FEC_R_DES_START_0 | |
| 168 | #define FEC_X_DES_START_0 0x3d4 /* Transmit descriptor ring */ | |
| 169 | #define FEC_X_DES_START_1 FEC_X_DES_START_0 | |
| 170 | #define FEC_X_DES_START_2 FEC_X_DES_START_0 | |
| d543a762 NA |
171 | #define FEC_R_BUFF_SIZE_0 0x3d8 /* Maximum receive buff size */ |
| 172 | #define FEC_R_BUFF_SIZE_1 FEC_R_BUFF_SIZE_0 | |
| 173 | #define FEC_R_BUFF_SIZE_2 FEC_R_BUFF_SIZE_0 | |
| f44d6305 | 174 | #define FEC_FIFO_RAM 0x400 /* FIFO RAM buffer */ |
| bf3c228d FL |
175 | /* Not existed in real chip |
| 176 | * Just for pass build. | |
| 177 | */ | |
| 745f42ba LW |
178 | #define FEC_RCMR_1 0xfff |
| 179 | #define FEC_RCMR_2 0xfff | |
| 180 | #define FEC_DMA_CFG_1 0xfff | |
| 181 | #define FEC_DMA_CFG_2 0xfff | |
| 182 | #define FEC_TXIC0 0xfff | |
| 183 | #define FEC_TXIC1 0xfff | |
| 184 | #define FEC_TXIC2 0xfff | |
| 185 | #define FEC_RXIC0 0xfff | |
| 186 | #define FEC_RXIC1 0xfff | |
| 187 | #define FEC_RXIC2 0xfff | |
| 1da177e4 LT |
188 | #endif /* CONFIG_M5272 */ |
| 189 | ||
| 190 | ||
| 191 | /* | |
| 192 | * Define the buffer descriptor structure. | |
| 5cfa3039 JB |
193 | * |
| 194 | * Evidently, ARM SoCs have the FEC block generated in a | |
| 05f3b50e | 195 | * little endian mode so adjust endianness accordingly. |
| 1da177e4 | 196 | */ |
| 05f3b50e | 197 | #if defined(CONFIG_ARM) |
| 5cfa3039 JB |
198 | #define fec32_to_cpu le32_to_cpu |
| 199 | #define fec16_to_cpu le16_to_cpu | |
| 200 | #define cpu_to_fec32 cpu_to_le32 | |
| 201 | #define cpu_to_fec16 cpu_to_le16 | |
| 202 | #define __fec32 __le32 | |
| 203 | #define __fec16 __le16 | |
| 204 | ||
| 2e28532f | 205 | struct bufdesc { |
| 5cfa3039 JB |
206 | __fec16 cbd_datlen; /* Data length */ |
| 207 | __fec16 cbd_sc; /* Control and status info */ | |
| 208 | __fec32 cbd_bufaddr; /* Buffer address */ | |
| ff43da86 | 209 | }; |
| acac8406 | 210 | #else |
| 5cfa3039 JB |
211 | #define fec32_to_cpu be32_to_cpu |
| 212 | #define fec16_to_cpu be16_to_cpu | |
| 213 | #define cpu_to_fec32 cpu_to_be32 | |
| 214 | #define cpu_to_fec16 cpu_to_be16 | |
| 215 | #define __fec32 __be32 | |
| 216 | #define __fec16 __be16 | |
| 217 | ||
| acac8406 | 218 | struct bufdesc { |
| 5cfa3039 JB |
219 | __fec16 cbd_sc; /* Control and status info */ |
| 220 | __fec16 cbd_datlen; /* Data length */ | |
| 221 | __fec32 cbd_bufaddr; /* Buffer address */ | |
| acac8406 FL |
222 | }; |
| 223 | #endif | |
| ff43da86 FL |
224 | |
| 225 | struct bufdesc_ex { | |
| 226 | struct bufdesc desc; | |
| 5cfa3039 JB |
227 | __fec32 cbd_esc; |
| 228 | __fec32 cbd_prot; | |
| 229 | __fec32 cbd_bdu; | |
| 230 | __fec32 ts; | |
| 231 | __fec16 res0[4]; | |
| 2e28532f | 232 | }; |
| ff43da86 | 233 | |
| 1da177e4 LT |
234 | /* |
| 235 | * The following definitions courtesy of commproc.h, which where | |
| 236 | * Copyright (c) 1997 Dan Malek (dmalek@jlc.net). | |
| 237 | */ | |
| ea209de3 LW |
238 | #define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */ |
| 239 | #define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */ | |
| 240 | #define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */ | |
| 241 | #define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */ | |
| 242 | #define BD_SC_CM ((ushort)0x0200) /* Continuous mode */ | |
| 243 | #define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */ | |
| 244 | #define BD_SC_P ((ushort)0x0100) /* xmt preamble */ | |
| 245 | #define BD_SC_BR ((ushort)0x0020) /* Break received */ | |
| 246 | #define BD_SC_FR ((ushort)0x0010) /* Framing error */ | |
| 247 | #define BD_SC_PR ((ushort)0x0008) /* Parity error */ | |
| 248 | #define BD_SC_OV ((ushort)0x0002) /* Overrun */ | |
| 249 | #define BD_SC_CD ((ushort)0x0001) /* ?? */ | |
| 1da177e4 LT |
250 | |
| 251 | /* Buffer descriptor control/status used by Ethernet receive. | |
| ea209de3 LW |
252 | */ |
| 253 | #define BD_ENET_RX_EMPTY ((ushort)0x8000) | |
| 254 | #define BD_ENET_RX_WRAP ((ushort)0x2000) | |
| 255 | #define BD_ENET_RX_INTR ((ushort)0x1000) | |
| 256 | #define BD_ENET_RX_LAST ((ushort)0x0800) | |
| 257 | #define BD_ENET_RX_FIRST ((ushort)0x0400) | |
| 258 | #define BD_ENET_RX_MISS ((ushort)0x0100) | |
| 259 | #define BD_ENET_RX_LG ((ushort)0x0020) | |
| 260 | #define BD_ENET_RX_NO ((ushort)0x0010) | |
| 261 | #define BD_ENET_RX_SH ((ushort)0x0008) | |
| 262 | #define BD_ENET_RX_CR ((ushort)0x0004) | |
| 263 | #define BD_ENET_RX_OV ((ushort)0x0002) | |
| 264 | #define BD_ENET_RX_CL ((ushort)0x0001) | |
| 265 | #define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */ | |
| 1da177e4 | 266 | |
| cdffcf1b | 267 | /* Enhanced buffer descriptor control/status used by Ethernet receive */ |
| ea209de3 | 268 | #define BD_ENET_RX_VLAN 0x00000004 |
| cdffcf1b | 269 | |
| 1da177e4 | 270 | /* Buffer descriptor control/status used by Ethernet transmit. |
| ea209de3 LW |
271 | */ |
| 272 | #define BD_ENET_TX_READY ((ushort)0x8000) | |
| 273 | #define BD_ENET_TX_PAD ((ushort)0x4000) | |
| 274 | #define BD_ENET_TX_WRAP ((ushort)0x2000) | |
| 275 | #define BD_ENET_TX_INTR ((ushort)0x1000) | |
| 276 | #define BD_ENET_TX_LAST ((ushort)0x0800) | |
| 277 | #define BD_ENET_TX_TC ((ushort)0x0400) | |
| 278 | #define BD_ENET_TX_DEF ((ushort)0x0200) | |
| 279 | #define BD_ENET_TX_HB ((ushort)0x0100) | |
| 280 | #define BD_ENET_TX_LC ((ushort)0x0080) | |
| 281 | #define BD_ENET_TX_RL ((ushort)0x0040) | |
| 282 | #define BD_ENET_TX_RCMASK ((ushort)0x003c) | |
| 283 | #define BD_ENET_TX_UN ((ushort)0x0002) | |
| 284 | #define BD_ENET_TX_CSL ((ushort)0x0001) | |
| 285 | #define BD_ENET_TX_STATS ((ushort)0x0fff) /* All status bits */ | |
| 1da177e4 | 286 | |
| ea209de3 LW |
287 | /* enhanced buffer descriptor control/status used by Ethernet transmit */ |
| 288 | #define BD_ENET_TX_INT 0x40000000 | |
| 289 | #define BD_ENET_TX_TS 0x20000000 | |
| 290 | #define BD_ENET_TX_PINS 0x10000000 | |
| 291 | #define BD_ENET_TX_IINS 0x08000000 | |
| 405f257f FL |
292 | |
| 293 | ||
| 294 | /* This device has up to three irqs on some platforms */ | |
| 295 | #define FEC_IRQ_NUM 3 | |
| 296 | ||
| 4d494cdc FD |
297 | /* Maximum number of queues supported |
| 298 | * ENET with AVB IP can support up to 3 independent tx queues and rx queues. | |
| 299 | * User can point the queue number that is less than or equal to 3. | |
| 300 | */ | |
| 301 | #define FEC_ENET_MAX_TX_QS 3 | |
| 302 | #define FEC_ENET_MAX_RX_QS 3 | |
| 303 | ||
| df406bc9 LW |
304 | #define FEC_R_DES_START(X) (((X) == 1) ? FEC_R_DES_START_1 : \ |
| 305 | (((X) == 2) ? \ | |
| 4d494cdc | 306 | FEC_R_DES_START_2 : FEC_R_DES_START_0)) |
| df406bc9 LW |
307 | #define FEC_X_DES_START(X) (((X) == 1) ? FEC_X_DES_START_1 : \ |
| 308 | (((X) == 2) ? \ | |
| 4d494cdc | 309 | FEC_X_DES_START_2 : FEC_X_DES_START_0)) |
| d543a762 NA |
310 | #define FEC_R_BUFF_SIZE(X) (((X) == 1) ? FEC_R_BUFF_SIZE_1 : \ |
| 311 | (((X) == 2) ? \ | |
| 312 | FEC_R_BUFF_SIZE_2 : FEC_R_BUFF_SIZE_0)) | |
| 4d494cdc | 313 | |
| df406bc9 | 314 | #define FEC_DMA_CFG(X) (((X) == 2) ? FEC_DMA_CFG_2 : FEC_DMA_CFG_1) |
| 4d494cdc FD |
315 | |
| 316 | #define DMA_CLASS_EN (1 << 16) | |
| df406bc9 | 317 | #define FEC_RCMR(X) (((X) == 2) ? FEC_RCMR_2 : FEC_RCMR_1) |
| 745f42ba | 318 | #define IDLE_SLOPE_MASK 0xffff |
| 4d494cdc FD |
319 | #define IDLE_SLOPE_1 0x200 /* BW fraction: 0.5 */ |
| 320 | #define IDLE_SLOPE_2 0x200 /* BW fraction: 0.5 */ | |
| df406bc9 LW |
321 | #define IDLE_SLOPE(X) (((X) == 1) ? \ |
| 322 | (IDLE_SLOPE_1 & IDLE_SLOPE_MASK) : \ | |
| 4d494cdc | 323 | (IDLE_SLOPE_2 & IDLE_SLOPE_MASK)) |
| ea209de3 | 324 | #define RCMR_MATCHEN (0x1 << 16) |
| df406bc9 | 325 | #define RCMR_CMP_CFG(v, n) (((v) & 0x7) << (n << 2)) |
| 4d494cdc FD |
326 | #define RCMR_CMP_1 (RCMR_CMP_CFG(0, 0) | RCMR_CMP_CFG(1, 1) | \ |
| 327 | RCMR_CMP_CFG(2, 2) | RCMR_CMP_CFG(3, 3)) | |
| 328 | #define RCMR_CMP_2 (RCMR_CMP_CFG(4, 0) | RCMR_CMP_CFG(5, 1) | \ | |
| 329 | RCMR_CMP_CFG(6, 2) | RCMR_CMP_CFG(7, 3)) | |
| df406bc9 LW |
330 | #define RCMR_CMP(X) (((X) == 1) ? RCMR_CMP_1 : RCMR_CMP_2) |
| 331 | #define FEC_TX_BD_FTYPE(X) (((X) & 0xf) << 20) | |
| 4d494cdc | 332 | |
| 405f257f FL |
333 | /* The number of Tx and Rx buffers. These are allocated from the page |
| 334 | * pool. The code may assume these are power of two, so it it best | |
| 335 | * to keep them that size. | |
| 336 | * We don't need to allocate pages for the transmitter. We just use | |
| 337 | * the skbuffer directly. | |
| 338 | */ | |
| 339 | ||
| 73e72289 | 340 | #define FEC_ENET_RX_PAGES 256 |
| 405f257f FL |
341 | #define FEC_ENET_RX_FRSIZE 2048 |
| 342 | #define FEC_ENET_RX_FRPPG (PAGE_SIZE / FEC_ENET_RX_FRSIZE) | |
| 343 | #define RX_RING_SIZE (FEC_ENET_RX_FRPPG * FEC_ENET_RX_PAGES) | |
| 344 | #define FEC_ENET_TX_FRSIZE 2048 | |
| 345 | #define FEC_ENET_TX_FRPPG (PAGE_SIZE / FEC_ENET_TX_FRSIZE) | |
| 55d0218a NA |
346 | #define TX_RING_SIZE 512 /* Must be power of two */ |
| 347 | #define TX_RING_MOD_MASK 511 /* for this to work */ | |
| 405f257f | 348 | |
| ea209de3 LW |
349 | #define BD_ENET_RX_INT 0x00800000 |
| 350 | #define BD_ENET_RX_PTP ((ushort)0x0400) | |
| 4c09eed9 JB |
351 | #define BD_ENET_RX_ICE 0x00000020 |
| 352 | #define BD_ENET_RX_PCR 0x00000010 | |
| 353 | #define FLAG_RX_CSUM_ENABLED (BD_ENET_RX_ICE | BD_ENET_RX_PCR) | |
| 354 | #define FLAG_RX_CSUM_ERROR (BD_ENET_RX_ICE | BD_ENET_RX_PCR) | |
| 405f257f | 355 | |
| ce99d0d3 FL |
356 | /* Interrupt events/masks. */ |
| 357 | #define FEC_ENET_HBERR ((uint)0x80000000) /* Heartbeat error */ | |
| 358 | #define FEC_ENET_BABR ((uint)0x40000000) /* Babbling receiver */ | |
| 359 | #define FEC_ENET_BABT ((uint)0x20000000) /* Babbling transmitter */ | |
| 360 | #define FEC_ENET_GRA ((uint)0x10000000) /* Graceful stop complete */ | |
| 361 | #define FEC_ENET_TXF_0 ((uint)0x08000000) /* Full frame transmitted */ | |
| 362 | #define FEC_ENET_TXF_1 ((uint)0x00000008) /* Full frame transmitted */ | |
| 363 | #define FEC_ENET_TXF_2 ((uint)0x00000080) /* Full frame transmitted */ | |
| 364 | #define FEC_ENET_TXB ((uint)0x04000000) /* A buffer was transmitted */ | |
| 365 | #define FEC_ENET_RXF_0 ((uint)0x02000000) /* Full frame received */ | |
| 366 | #define FEC_ENET_RXF_1 ((uint)0x00000002) /* Full frame received */ | |
| 367 | #define FEC_ENET_RXF_2 ((uint)0x00000020) /* Full frame received */ | |
| 368 | #define FEC_ENET_RXB ((uint)0x01000000) /* A buffer was received */ | |
| 369 | #define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */ | |
| 370 | #define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */ | |
| de40ed31 | 371 | #define FEC_ENET_WAKEUP ((uint)0x00020000) /* Wakeup request */ |
| ce99d0d3 FL |
372 | #define FEC_ENET_TXF (FEC_ENET_TXF_0 | FEC_ENET_TXF_1 | FEC_ENET_TXF_2) |
| 373 | #define FEC_ENET_RXF (FEC_ENET_RXF_0 | FEC_ENET_RXF_1 | FEC_ENET_RXF_2) | |
| 374 | #define FEC_ENET_TS_AVAIL ((uint)0x00010000) | |
| 375 | #define FEC_ENET_TS_TIMER ((uint)0x00008000) | |
| 376 | ||
| 377 | #define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII | FEC_ENET_TS_TIMER) | |
| 80dc6a9f | 378 | #define FEC_NAPI_IMASK (FEC_ENET_MII | FEC_ENET_TS_TIMER) |
| ce99d0d3 FL |
379 | #define FEC_RX_DISABLED_IMASK (FEC_DEFAULT_IMASK & (~FEC_ENET_RXF)) |
| 380 | ||
| d851b47b FD |
381 | /* ENET interrupt coalescing macro define */ |
| 382 | #define FEC_ITR_CLK_SEL (0x1 << 30) | |
| 383 | #define FEC_ITR_EN (0x1 << 31) | |
| df406bc9 | 384 | #define FEC_ITR_ICFT(X) (((X) & 0xff) << 20) |
| 745f42ba | 385 | #define FEC_ITR_ICTT(X) ((X) & 0xffff) |
| d851b47b FD |
386 | #define FEC_ITR_ICFT_DEFAULT 200 /* Set 200 frame count threshold */ |
| 387 | #define FEC_ITR_ICTT_DEFAULT 1000 /* Set 1000us timer threshold */ | |
| 388 | ||
| ea209de3 LW |
389 | #define FEC_VLAN_TAG_LEN 0x04 |
| 390 | #define FEC_ETHTYPE_LEN 0x02 | |
| ce99d0d3 | 391 | |
| 28b5f058 NA |
392 | /* Controller is ENET-MAC */ |
| 393 | #define FEC_QUIRK_ENET_MAC (1 << 0) | |
| 394 | /* Controller needs driver to swap frame */ | |
| 395 | #define FEC_QUIRK_SWAP_FRAME (1 << 1) | |
| 396 | /* Controller uses gasket */ | |
| 397 | #define FEC_QUIRK_USE_GASKET (1 << 2) | |
| 398 | /* Controller has GBIT support */ | |
| 399 | #define FEC_QUIRK_HAS_GBIT (1 << 3) | |
| 400 | /* Controller has extend desc buffer */ | |
| 401 | #define FEC_QUIRK_HAS_BUFDESC_EX (1 << 4) | |
| 402 | /* Controller has hardware checksum support */ | |
| 403 | #define FEC_QUIRK_HAS_CSUM (1 << 5) | |
| 404 | /* Controller has hardware vlan support */ | |
| 405 | #define FEC_QUIRK_HAS_VLAN (1 << 6) | |
| 406 | /* ENET IP errata ERR006358 | |
| 407 | * | |
| 408 | * If the ready bit in the transmit buffer descriptor (TxBD[R]) is previously | |
| 409 | * detected as not set during a prior frame transmission, then the | |
| 410 | * ENET_TDAR[TDAR] bit is cleared at a later time, even if additional TxBDs | |
| 411 | * were added to the ring and the ENET_TDAR[TDAR] bit is set. This results in | |
| 412 | * frames not being transmitted until there is a 0-to-1 transition on | |
| 413 | * ENET_TDAR[TDAR]. | |
| 414 | */ | |
| ea209de3 | 415 | #define FEC_QUIRK_ERR006358 (1 << 7) |
| 28b5f058 NA |
416 | /* ENET IP hw AVB |
| 417 | * | |
| 418 | * i.MX6SX ENET IP add Audio Video Bridging (AVB) feature support. | |
| 419 | * - Two class indicators on receive with configurable priority | |
| 420 | * - Two class indicators and line speed timer on transmit allowing | |
| 421 | * implementation class credit based shapers externally | |
| 422 | * - Additional DMA registers provisioned to allow managing up to 3 | |
| 423 | * independent rings | |
| 424 | */ | |
| 425 | #define FEC_QUIRK_HAS_AVB (1 << 8) | |
| 426 | /* There is a TDAR race condition for mutliQ when the software sets TDAR | |
| 427 | * and the UDMA clears TDAR simultaneously or in a small window (2-4 cycles). | |
| 428 | * This will cause the udma_tx and udma_tx_arbiter state machines to hang. | |
| 429 | * The issue exist at i.MX6SX enet IP. | |
| 430 | */ | |
| 431 | #define FEC_QUIRK_ERR007885 (1 << 9) | |
| 432 | /* ENET Block Guide/ Chapter for the iMX6SX (PELE) address one issue: | |
| 433 | * After set ENET_ATCR[Capture], there need some time cycles before the counter | |
| 434 | * value is capture in the register clock domain. | |
| 435 | * The wait-time-cycles is at least 6 clock cycles of the slower clock between | |
| 436 | * the register clock and the 1588 clock. The 1588 ts_clk is fixed to 25Mhz, | |
| 437 | * register clock is 66Mhz, so the wait-time-cycles must be greater than 240ns | |
| 438 | * (40ns * 6). | |
| 439 | */ | |
| 440 | #define FEC_QUIRK_BUG_CAPTURE (1 << 10) | |
| 3d125f9c SA |
441 | /* Controller has only one MDIO bus */ |
| 442 | #define FEC_QUIRK_SINGLE_MDIO (1 << 11) | |
| 18803495 GU |
443 | /* Controller supports RACC register */ |
| 444 | #define FEC_QUIRK_HAS_RACC (1 << 12) | |
| 28b5f058 | 445 | |
| 7355f276 TK |
446 | struct bufdesc_prop { |
| 447 | int qid; | |
| 448 | /* Address of Rx and Tx buffers */ | |
| 449 | struct bufdesc *base; | |
| 450 | struct bufdesc *last; | |
| 451 | struct bufdesc *cur; | |
| 53bb20d1 | 452 | void __iomem *reg_desc_active; |
| 7355f276 TK |
453 | dma_addr_t dma; |
| 454 | unsigned short ring_size; | |
| 455 | unsigned char dsize; | |
| 456 | unsigned char dsize_log2; | |
| 457 | }; | |
| 458 | ||
| 4d494cdc | 459 | struct fec_enet_priv_tx_q { |
| 7355f276 | 460 | struct bufdesc_prop bd; |
| 4d494cdc FD |
461 | unsigned char *tx_bounce[TX_RING_SIZE]; |
| 462 | struct sk_buff *tx_skbuff[TX_RING_SIZE]; | |
| 463 | ||
| 4d494cdc FD |
464 | unsigned short tx_stop_threshold; |
| 465 | unsigned short tx_wake_threshold; | |
| 466 | ||
| 4d494cdc FD |
467 | struct bufdesc *dirty_tx; |
| 468 | char *tso_hdrs; | |
| 469 | dma_addr_t tso_hdrs_dma; | |
| 470 | }; | |
| 471 | ||
| 472 | struct fec_enet_priv_rx_q { | |
| 7355f276 | 473 | struct bufdesc_prop bd; |
| 4d494cdc | 474 | struct sk_buff *rx_skbuff[RX_RING_SIZE]; |
| 4d494cdc FD |
475 | }; |
| 476 | ||
| 405f257f FL |
477 | /* The FEC buffer descriptors track the ring buffers. The rx_bd_base and |
| 478 | * tx_bd_base always point to the base of the buffer descriptors. The | |
| 479 | * cur_rx and cur_tx point to the currently available buffer. | |
| 480 | * The dirty_tx tracks the current buffer that is being sent by the | |
| 481 | * controller. The cur_tx and dirty_tx are equal under both completely | |
| 482 | * empty and completely full conditions. The empty/ready indicator in | |
| 483 | * the buffer descriptor determines the actual condition. | |
| 484 | */ | |
| 485 | struct fec_enet_private { | |
| 486 | /* Hardware registers of the FEC device */ | |
| 487 | void __iomem *hwp; | |
| 488 | ||
| 489 | struct net_device *netdev; | |
| 490 | ||
| 491 | struct clk *clk_ipg; | |
| 492 | struct clk *clk_ahb; | |
| 9b5330ed | 493 | struct clk *clk_ref; |
| daa7d392 | 494 | struct clk *clk_enet_out; |
| 6605b730 | 495 | struct clk *clk_ptp; |
| 405f257f | 496 | |
| 91c0d987 NA |
497 | bool ptp_clk_on; |
| 498 | struct mutex ptp_clk_mutex; | |
| 9fc095f1 FD |
499 | unsigned int num_tx_queues; |
| 500 | unsigned int num_rx_queues; | |
| 91c0d987 | 501 | |
| 405f257f | 502 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
| 4d494cdc FD |
503 | struct fec_enet_priv_tx_q *tx_queue[FEC_ENET_MAX_TX_QS]; |
| 504 | struct fec_enet_priv_rx_q *rx_queue[FEC_ENET_MAX_RX_QS]; | |
| 405f257f | 505 | |
| 4d494cdc FD |
506 | unsigned int total_tx_ring_size; |
| 507 | unsigned int total_rx_ring_size; | |
| 405f257f | 508 | |
| 4d494cdc FD |
509 | unsigned long work_tx; |
| 510 | unsigned long work_rx; | |
| 511 | unsigned long work_ts; | |
| 512 | unsigned long work_mdio; | |
| 79f33912 | 513 | |
| 405f257f FL |
514 | struct platform_device *pdev; |
| 515 | ||
| 405f257f FL |
516 | int dev_id; |
| 517 | ||
| 518 | /* Phylib and MDIO interface */ | |
| 519 | struct mii_bus *mii_bus; | |
| 520 | struct phy_device *phy_dev; | |
| 521 | int mii_timeout; | |
| 522 | uint phy_speed; | |
| 523 | phy_interface_t phy_interface; | |
| 407066f8 | 524 | struct device_node *phy_node; |
| 405f257f FL |
525 | int link; |
| 526 | int full_duplex; | |
| d97e7497 | 527 | int speed; |
| 405f257f FL |
528 | struct completion mdio_done; |
| 529 | int irq[FEC_IRQ_NUM]; | |
| 217b5844 | 530 | bool bufdesc_ex; |
| baa70a5c | 531 | int pause_flag; |
| de40ed31 | 532 | int wol_flag; |
| 6b7e4008 | 533 | u32 quirks; |
| 6605b730 | 534 | |
| dc975382 | 535 | struct napi_struct napi; |
| 4c09eed9 | 536 | int csum_flags; |
| dc975382 | 537 | |
| 36cdc743 RK |
538 | struct work_struct tx_timeout_work; |
| 539 | ||
| 6605b730 FL |
540 | struct ptp_clock *ptp_clock; |
| 541 | struct ptp_clock_info ptp_caps; | |
| 542 | unsigned long last_overflow_check; | |
| 543 | spinlock_t tmreg_lock; | |
| 544 | struct cyclecounter cc; | |
| 545 | struct timecounter tc; | |
| 546 | int rx_hwtstamp_filter; | |
| 547 | u32 base_incval; | |
| 548 | u32 cycle_speed; | |
| 549 | int hwts_rx_en; | |
| 550 | int hwts_tx_en; | |
| 91c0d987 | 551 | struct delayed_work time_keep; |
| f4e9f3d2 | 552 | struct regulator *reg_phy; |
| 41ef84ce FD |
553 | |
| 554 | unsigned int tx_align; | |
| 555 | unsigned int rx_align; | |
| d851b47b FD |
556 | |
| 557 | /* hw interrupt coalesce */ | |
| 558 | unsigned int rx_pkts_itr; | |
| 559 | unsigned int rx_time_itr; | |
| 560 | unsigned int tx_pkts_itr; | |
| 561 | unsigned int tx_time_itr; | |
| 562 | unsigned int itr_clk_rate; | |
| 1b7bde6d NA |
563 | |
| 564 | u32 rx_copybreak; | |
| 89bddcda LZ |
565 | |
| 566 | /* ptp clock period in ns*/ | |
| 567 | unsigned int ptp_inc; | |
| 278d2404 LZ |
568 | |
| 569 | /* pps */ | |
| 570 | int pps_channel; | |
| 571 | unsigned int reload_period; | |
| 572 | int pps_enable; | |
| 573 | unsigned int next_counter; | |
| 405f257f | 574 | }; |
| 1da177e4 | 575 | |
| ca162a82 | 576 | void fec_ptp_init(struct platform_device *pdev); |
| 32cba57b | 577 | void fec_ptp_stop(struct platform_device *pdev); |
| 6605b730 | 578 | void fec_ptp_start_cyclecounter(struct net_device *ndev); |
| 1d5244d0 BH |
579 | int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr); |
| 580 | int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr); | |
| 278d2404 | 581 | uint fec_ptp_check_pps_event(struct fec_enet_private *fep); |
| 6605b730 | 582 | |
| 1da177e4 LT |
583 | /****************************************************************************/ |
| 584 | #endif /* FEC_H */ |